Notes: Cell Organelles This is just a few of the organelles listed in your book, you are required to know all of them.

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Presentation transcript:

Notes: Cell Organelles This is just a few of the organelles listed in your book, you are required to know all of them.

Standards I can describe and identify the cell structures from descriptions, micrographs, photographs and cartoons.

Cell Membrane (plasma membrane) Basic Functions: Separates the metabolic processes (chemical reactions) occurring on the inside of the cell from the external environment. Is selectively permeable, meaning it only allows molecules with certain properties to enter the cell. Allows the cell to ingest and excrete large particles.

Cell Membrane (plasma membrane) Structure: (what it’s made of) Phospholipid Bilayer Transport Proteins: Carbohydrates (sugars): Many lipid molecules arranged by their chemical properties to form a fluid “sac”. Allow certain molecules in and out of cells. Act as “tags” to identify the cell.

Cell Membrane (plasma membrane) Fluid Mosaic Model - VideoVideo

Energy for Life Mitochondria: Chloroplasts: Has an inner membrane on which the chemical reactions that make ATP from glucose take place (cellular respiration). Site of photosynthesis where chlorophyll uses sunlight to make glucose.

Ribosomes Where are they found? What do they do? How do they know which ones to make? Floating free in cytoplasm Attached to E.R. (making it look rough) Synthesize proteins Instructions from DNA are sent to the ribosomes from the nucleus.

Vesicles Vesicle: Vacuole: Lysosome: Any organelle that is a membrane bound sac located inside the cell. Storage for water and chemicals, often takes up 50-80% of a plant cell. Contains digestive enzymes

Cytoskeleton Cytoskeleton: Many functions in the cell: Many types of fibers and filaments. A network of tubes and filaments that crisscross the inside of the cell. Intercellular mobility (moves vesicles and other things around the cell.) Helps split the cell during mitosis. Framework that gives cells their basic shape.

Flagellum & Cilia Flagellum: Cilia: The tail-like appendage used for locomotion Hair like appendages used for locomotion.

At your table: With a partner, or as a table get a wipe board and draw and describe the following organelles: Nucleus Golgi Apparatus (Golgi Complex) Endoplasmic Reticulum (ER) Rough ER Smooth ER